Haley staying in the race helps Trump. Even though it’s bot close, as long as the primary is ongoing it allows Trump to keep more attention, and starves the Democrats.
Imho we may get the very best scenario...
Nicki stays in until Super Tuesday and gets the most brutal annihilation in modern primary history....
and then she is totally broke and crushed and quits the race in disgrace.
If she fails to endorse President Trump that would be a bonus.
She can then officially join the Republican Quisling Dead-Ender Club with the J6 Committee gang.